*Stata/MP*: The fastest and** **largest version of Stata. Now in addition to its multiprocessing capabilities, Stata/MP can also analyze more data than any other flavor of Stata. Stata/MP can analyze 10 to 20 billion observations given the current largest computers, and is ready to analyze up to 281 trillion observations once computer hardware catches up.

*Stata/SE*: Stata for large datasets

*Stata/IC*: Stata for moderate-sized datasets

*Small Stata*: A version of Stata that handles small datasets (for educational purchases only)

Most computers purchased since mid 2006 can take advantage of the advanced multiprocessing of Stata/MP. This includes the Intel CoreTM 2 Duo, i3, i5, i7, and the AMD X2 dual-core chips. On dual-core chips, Stata/MP runs 40% faster overall and 72% faster where it matters, on the time-consuming estimation commands. With more than two cores or processors, Stata/MP is even faster. Stata/SE, Stata/IC, and Small Stata differ only in the dataset size that each can analyze.

Stata/SE and Stata/MP can fit models with more independent variables than Stata/IC (up to 10,998).

Stata/IC allows datasets with as many as 2,047 variables, and the maximum number of observations is 2.14 billion. Stata/IC can have at most 798 right-hand-side variables in a model.

Small Stata is limited to analyzing datasets with a maximum of 99 variables and 1,200 observations. Small Stata can have at most 98 right-hand-side variables in a model.

All the above flavors have the same complete set of commands and features and include PDF documentation.

Package | Max. Var. | Max. Ind. Var. | Max. Obs. |
| Parallel processing? | Platforms |
---|---|---|---|---|---|---|

Stata MP | 32,767 | 10,998 | 20 billion* | Yes | Yes | Win Mac, Unix |

Stata SE | 32,767 | 10,998 | 2.14 billion* | Yes | No | Win, Mac, Unix |

Stata IC | 2,047 | 798 | 2.14 billion* | Yes | No | Win, Mac, Unix |

Small Stata | 99 | 98 | 1,200 | Yes | No | Win, Mac, Unix |

*The maximum number of observations is limited only by the amount of available RAM on your system

MP licenses can be used on both 32 - and 64-bit computers, but they only go faster if your computer has at keast the same number of processors as your license, i.e., MP2 will work more efficiently than a SE only if the computer has at least 2 processors. As you can see from the following graph, a Stata/MP is considerably faster than a Stata/SE.